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US 5,710,333 AGranted
Process for the preparation of tertiary amine oxides
AssigneeHoechst Aktiengesellschaft
InventorsGeorg Bader, Ramon Joglar Tamargo
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Abstract
Process for the preparation of tertiary amine oxides by reaction of a tertiary amine with a compound which splits off oxygen. To avoid gel and foam formation, a portion of the amine oxide to be prepared is added before the start of this reaction.
Claims13
A process for the preparation of a tertiary amine oxide of the formula I ##STR2## in which R.sup.1 is C.sub.1 -C.sub.3 -alkyl,
- R.sup.2 is C.sub.1 -C.sub.20 -alkyl and
- R.sup.3 is C.sub.6 -C.sub.22 -alkyl,
- by reaction of a tertiary amine of the formula II
- R.sup.1 R.sup.2 R.sup.3 N (II)
- with a compound which splits off oxygen, which comprises carrying out the reaction in the presence of 1 to 15% by weight, based on the reaction mixture of a tertiary amine oxide of the formula I wherein essentially all of said tertiary amine oxide is present in the reaction mixture before the reaction starts.
2 more elements
Dependencies are inferred from the claim text.